input.swift

var inputplf = DB_decoder_t(
    plugin: plug,
    open: {(hints: UInt32) -> UnsafeMutablePointer<DB_fileinfo_t>? in
            let ptr: UnsafeMutablePointer<fileinfo> = UnsafeMutablePointer<fileinfo>.allocate(capacity: 1)
            ptr.initialize(repeating: fileinfo(dbfileinfo: DB_fileinfo_t(), frequency: 440), count: 1)
            return UnsafeMutablePointer<DB_fileinfo_t>(OpaquePointer(ptr))
        },
    init: {(info: UnsafeMutablePointer<DB_fileinfo_t>?, it: UnsafeMutablePointer<DB_playItem_t>?) -> Int32 in
            0
        },
    free: {(a: UnsafeMutablePointer<DB_fileinfo_t>?) -> Void in
     },
    read: {(a: UnsafeMutablePointer<DB_fileinfo_t>?, b: UnsafeMutablePointer<CChar>?, Int32) -> Int32 in
            0
        },
    seek: {(info: UnsafeMutablePointer<DB_fileinfo_t>?, time: Float) -> Int32 in
            0
        },
    seek_sample: {(info: UnsafeMutablePointer<DB_fileinfo_t>?, sample: Int32) -> Int32 in
            0
        },
    insert: {(plt: UnsafeMutablePointer<ddb_playlist_t>?, after: UnsafeMutablePointer<DB_playItem_t>?, fname: UnsafePointer<CChar>?) -> UnsafeMutablePointer<DB_playItem_t>? in
            nil
        },
    numvoices: nil,
    mutevoice: nil,
    read_metadata: {(it: UnsafeMutablePointer<DB_playItem_t>?) -> Int32 in
            0
        },
    write_metadata: {(it: UnsafeMutablePointer<DB_playItem_t>?) -> Int32 in
            0
        },
    exts: nil,
    prefixes: nil,
    open2: {(hints: UInt32, it: UnsafeMutablePointer<DB_playItem_t>?) -> UnsafeMutablePointer<DB_fileinfo_t>? in
            nil
        }
    )